State the number of protons in Al^3+ Express your answer as an integer.   State the number of electrons in Al^3+ Express your answer as an integer.

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Q: State the number of protons in Ni^2+ Express your answer as an integer.   State the number of…

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Q: Calculate the density for Zinc Using the atomic mass of Zinc and dimensions of 3.5mmx 2.5mm x 2.5mm

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Q: The subatomic particle known as the proton has a mass of 1.67x10-24 g and a diameter of 1.00x10-13…

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Q: sodium and nitrogen Express your answers as ions and chemical formula separated by a commas

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Q: Uranium-235 is used in nuclear fission. Determine the number of protons and the number of neutrons…

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Q: For each of the following elements, write its chemical symbol, locate it in the periodic table, and…

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Q: 1.Which of the following elements is not an alkali metal? a. Li b. Na c. K d. P

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Q: An element has the following natural abundances and isotopic masses: 90.92% abundance with 19.99…

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Q: A chemist in an imaginary universe, where electrons have a different charge than they do in our…

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Q: State the number of electrons in Se^2−. Express your answer as an integer.

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Q: Which of the following could describe an element?   I II III All of them None of them

A: Matter: Matter can be defined as any component which occupies space and has mass.

Q: Uranium -235 is the isotope of uranium commonly used in nuclear power plants . How many (a) protons…

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Q: How many protons and electrons are there in a neutral atom of each of the following elements? Part C…

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Q: State the number of protons in Ag^+. Express your answer as an integer.   State the number of…

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Q: an unknown copper sample has a 37.2% Copper, what is the most likely identity of the sample?

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Q: How many protons and electrons are there in a neutral atom of each of the following elements?

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Q: true or false (h)  All atoms of the same element have the same number of electrons.  (b) All atoms…

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Q: 7. For the following elements, give their name and their atornic number Name Atomic Number a. F b.…

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Q: A sample of chemical X is found to contain 5.0 grams of oxygen, 10.0 grams of carbon, and 20.0 grams…

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Q: How many electrons can have n = 50, l = 2. [Write your answer as a number.

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Q: Based on your answer in Part B, how many electrons are in this amount of 13C? Express your answer…

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Q: 1. a) Calculate the mass percent of NaHCO3 based on the manufacturer's list of ingredients: 325 mg…

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Q: MCQ 9: Two Greek words 'element' and 'measure' constitutes the word A. spectrometry B. stoichiometry…

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Q: On a mission to a newly discovered planet, an astronaut finds gallium abundances of 60.11 % for 69…

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Q: State the number of protons in Se^2−. Express your answer as an integer.

A:

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.